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TM 9-2320-364-20-4
2-3193
R52
R51
R50
Remove all jewelry such as rings, dog tags,
bracelets, etc. If jewelry or tools contact
positive electrical circuits, a direct short may
result. Damage to equipment, injury or death
to personnel may occur.
CONTINUITY TEST
(1) Remove relay R51 from CHU
control box (Para 21-23) .
(2) Set multimeter select switch to ohms.
(3) Is there continuity on wire 1496
between relay 51, terminal 85 and
relay R52, terminal 87?
(a) If there is no continuity, repair
wire 1496 (see schematic Fig 2-79)
or notify DS Maintenance.
(b) If there is continuity, wire 1496 is OK.
(4) Install relays R51 and R52 (Para 21-23).
CHU
CONTROL
BOX
R51
85
1496
87
R52
R51
86
87A
87
85
30
86
87A
87
85
30
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